brnathy88
brnathy88 brnathy88
  • 04-05-2021
  • Mathematics
contestada

The sum of two numbers is 2. Their difference is -16. What is the first number?

Respuesta :

clarch19
clarch19 clarch19
  • 04-05-2021

Answer:

x = -7

y = 9

Step-by-step explanation:

x + y = 2

x - y = -16

substitute '2-x' for 'y'

x - (2-x) = -16

x - 2 + x = -16

2x - 2 = -16

2x = -14

x = -7

-7 + y = 2

y = 9

Answer Link

Otras preguntas

Which is not a property of a mineral? a. hardness b. diffraction c. cleavage d. luster
Brianna is getting materials for a chemistry experiment her teacher gives her a container that has 0.15 L of liquid in it Breonna needs to use 0.4 of this liqui
Where and when did the French language start and end?
phil has three times as many rocks has Peter together they have 48 how many more rocks does Phil have then Peter
A keyboard that cost $475 is marked down 15% for a sale. How much is the savings?
A student completing research for a project enters the following search terms: Drugs AND prescription AND cost Which of the following best describes the likely
How do you simplify 28/50?
arange 8.508 8.58 7.5 7.058 in decreasing order
how does natural selection affect animals
what is 10% of 400.00